
Your Custom Quiz
In Lomas 2025 et al., on DPO and dorsolateral subluxation, what percentage of hips had a post-DPO DLS score <55%, indicating higher OA risk?
🔍 Key Findings
- DPO significantly improved femoral head coverage, increasing mean DLS from 36.1% to 71.4% postoperatively (p < 0.001).
- No significant change in DLS between immediate postoperative and follow-up scans, suggesting stable surgical outcomes over time.
- Greater plate angle (30°) yielded larger DLS improvement (mean increase: 39.8%) compared to 25° and 20° plates.
- Only 3 hips had post-op DLS scores <55%, indicating most patients had lower risk of osteoarthritis progression.
- No correlation found between DLS improvement and age, body weight, or side of surgery, suggesting broad applicability.
- CT was used for DLS measurement in simulated weight-bearing, improving precision over radiographic methods.
- Major limitations included small sample size, multiple surgeons, and variable sedation vs anesthesia during imaging.
- DPO confirmed as effective for reducing dorsolateral subluxation, improving coxofemoral joint congruency in dysplastic dogs.
Veterinary and Comparative Orthopaedics and Traumatology
2
2025
The Impact of Double Pelvic Osteotomy on Dorsolateral Subluxation in 24 Dogs
2025-2-VCOT-lomas-4
In Crystal 2024 et al., on elbow osteotomies, how did opening wedge osteotomies compare to external rotational osteotomies in reducing medial compartment load?
🔍 Key Findings Summary
- Ex vivo cadaver study using 5 paired canine thoracic limbs
- Compared medial opening wedge osteotomy (MOWO) and external rotational osteotomy (ERO) of the humerus
- Measured pressure changes in the medial compartment using thin-film sensors
- ERO significantly reduced peak pressure and pressure distribution in the medial elbow compartment (p < 0.05)
- MOWO showed no significant pressure reduction relative to native state
- Combined MOWO + ERO did not significantly improve over ERO alone
- Findings support the biomechanical rationale for ERO as a surgical strategy to offload the medial compartment in cases like medial compartment disease (MCD)
Veterinary and Comparative Orthopedics and Traumatology
4
2024
Effect of Medial Opening Wedge and External Rotational Humeral Osteotomies on Medial Elbow Compartment Pressure: An Ex Vivo Study
2024-4-VCOT-crystal-3
In Davies 2024 et al., on lymphaticovenous anastomosis, what intervention resolved partial occlusion of the thoracic duct after MAC coupling in one cat?
🔍 Key Findings
- Lymphaticovenous anastomosis (TD to AV) was successfully performed in all 8 feline cadavers using a microvascular anastomotic coupler (MAC).
- Anastomotic patency was confirmed intraoperatively and postoperatively in 7/8 cats via contrast lymphography or retrograde venography.
- Dissection and anastomosis took a median of 120 minutes, with minimal technical complications.
- A 1.5 mm MAC was used in 6 cats, and a 2.0 mm in 2 cats; TD diameter ranged 1.0–1.5 mm, AV up to 2.25 mm.
- Challenges included vessel twisting and luminal patency issues, resolved intraoperatively with minor adjustments (e.g., repeat pinning, tacking suture).
- MAC use eliminated need for hand-suturing, lowering skill demands but requiring precise alignment.
- Technique provides direct lymphatic-to-venous drainage, potentially reducing the stimulus for collateral vessel formation.
- May serve as a future treatment option for feline idiopathic chylothorax, warranting further in vivo studies.
Veterinary Surgery
7
2024
Lymphaticovenous anastomosis of the caudal thoracic duct to the azygous vein: A feline cadaver study
2024-7-VS-davies-3
In Jeong 2025 et al., on contoured saw guide vs jig, what was observed regarding *surgical time*?
🔍 Key Findings
- TPLO with the contoured saw guide achieved more accurate osteotomy angles for both inclination and torsion in bone models and cadaveric limbs (p < .05).
- Medial cortical damage was significantly lower with the contoured guide (247 vs. 1866 pixels in bone models; p < .001).
- No significant difference in eccentricity (distance between actual and intended osteotomy center) was found between groups.
- Postoperative tibial plateau angle (TPA) was similar between groups (6.4° vs. 7.6°; p = .15), though both were slightly higher than the target of 6°.
- Deviation in medial mechanical proximal tibial angle (mMPTA) showed no significant group difference; valgus deformity occurred in both.
- Osteotomy and device application times were similar between the contoured guide and jig-assisted TPLO.
- The contoured guide eliminated the need for proximal jig pin, potentially reducing intra-articular pin risk.
- The guide's multiple pin fixation system improved stability and alignment, supporting safer osteotomy on curved tibial surfaces.
Veterinary Surgery
7
2025
Evaluation of a contoured saw guide for tibial plateau leveling osteotomy in dogs
2025-7-VS-jeong-5
In Zann 2023 et al., on proximal humeral OC surgery, which imaging modality showed significantly greater lesion size measurements?
🔍 Key Findings
- All dogs developed progressive osteoarthritis (OA) after surgical debridement of proximal humeral OC.
- Ipsilateral muscle atrophy and reduced shoulder range of motion were common, particularly in unilaterally affected dogs.
- Arthroscopically, lesions showed incomplete cartilage infilling even years after surgery, averaging only ~37% infilling.
- Synovitis was present in all joints, with moderate-to-severe hypertrophy and vascularity scores.
- CT identified OC lesions as deeper and wider than radiography, and all affected joints had more advanced OA than contralateral limbs (P = .001 radiograph, P = .005 CT).
- Kinetic gait analysis showed no significant differences in peak vertical force or impulse, but a subtle 4.4% asymmetric load reduction on the operated limb.
- Median LOAD score was 6, indicating mild owner-perceived disability despite measurable clinical and imaging abnormalities.
- Cartilage infilling was incomplete in all cases, with no lesion exceeding 60% restoration, raising questions about the healing potential of debridement alone.
Veterinary Surgery
6
2023
Long-term outcome of dogs treated by surgical debridement of proximal humeral osteochondrosis
2023-6-VS-zann-4
In McClean 2025 et al., on shoulder arthrocentesis techniques, what proportion of SA injections resulted in cartilage injury (IACI)?
🔍 Key Findings
- Study Type: Cadaveric study using 36 paired canine shoulders (n = 18 per group: Subacromial [SA] and Supratubercular [ST])
- Survey Results: 75% of clinicians preferred SA technique; 25% used ST
- Complete accuracy: 50% (SA), 44% (ST) — no significant difference (p = .8)
- Partial accuracy: 39% (SA), 50% (ST)
- Complete miss: 11% (SA), 5.6% (ST)
- Incidence of IACI:
- SA: 50% (9/18 shoulders)
- ST: 11% (2/18 shoulders) → statistically significant (p = .007)
- Lesion depth: All ST lesions were partial-thickness; SA group had one full-thickness lesion (p = .027)
- Location: Lesions found on glenoid and humeral head with even distribution in SA; only one each in ST
- Landmark-guided injections were ≤50% completely accurate, even by an experienced operator.
- ST technique is safer with lower risk of cartilage damage, despite similar accuracy.
- Findings support considering image-guided techniques to improve both safety and accuracy in clinical settings.
Veterinary Surgery
4
2025
Accuracy and safety of two landmark‐guided techniques for arthrocentesis and intra‐articular injection of the shoulder in dogs
2025-4-VS-mcclean-4
In Griffin 2025 et al., on sentinel lymph mapping, what protocol change improved SLN visualization intraoperatively?
🔍 Key Findings
- Six dogs with thyroid carcinoma underwent preoperative CT lymphography (CTL) and intraoperative sentinel lymph node (SLN) mapping using methylene blue (MB) and indocyanine green (ICG) with near-infrared (NIR) imaging.
- SLNs were successfully identified in all dogs (6/6).
- SLNs included medial retropharyngeal, cranial deep cervical, and superficial cervical nodes.
- Metastatic carcinoma was found in 3/12 SLNs, in 2/6 dogs.
- Some discordance occurred between CTL and intraoperative SLN findings (partial match in 3/6).
- Protocol modifications (e.g., reduced dye volume, post-exposure injection) improved localization and minimized dye diffusion.
- No intraoperative complications or adverse events occurred.
- Study supports further investigation of combined SLN mapping techniques in canine thyroid cancer.
Veterinary Surgery
4
2025
A combination of pre‐ and intraoperative techniques identifies sentinel lymph nodes in dogs with thyroid carcinoma: A pilot study
2025-4-VS-griffin-4
In Marshall 2022 et al., on fracture healing outcomes, what was the **prevalence of non-union** among the 461 fractures reviewed?
🔍 Key Findings
- Delayed union occurred in 13.9% of fractures; non-union in 4.6%; mal-union in 0.7%
- Major implant failure increased odds of delayed or non-union by 12.9×
- Surgical site infection increased risk 3.2×; bone grafting (any type) was also associated (OR 3.3)
- Comminuted fractures had 4.2× greater odds of delayed or non-union
- Older age increased risk, with odds increasing by 21% per year
- Radius and ulna fractures in toy breeds were not high risk, contrary to historical belief
- Most non-unions required revision surgery with rhBMP-2 or autograft to achieve union
- Ilium fractures showed 0% delayed/non-union — possibly due to robust muscle envelope
Veterinary Surgery
7
2022
Delayed union, non-union and mal-union in 442 dogs
2022-7-VS-marshall-3
In Socha 2024 et al., what was the statistical significance of the difference in T2*L values between CrCL and CdCL?
🔍 Key Findings Summary
- Normative ultrashort echo time (UTE) MRI T2* values were established for:
- Patellar ligament (PL): T2*L = 4.65 ms
- Cranial cruciate ligament (CrCL): T2*L = 5.99 ms
- Caudal cruciate ligament (CdCL): T2*L = 7.06 ms
- Statistically significant differences in T2*L values were found between:
- PL vs. CrCL (p = 0.03)
- PL vs. CdCL (p = 0.0097)
- CrCL vs. CdCL (p = 0.03)
- No significant differences in short T2* (T2*S) values across ligaments.
- Study highlights potential of UTE MRI to detect early ligament changes even without physical instability.
- May guide early diagnosis in partial CrCL rupture where standard MRI is limited.
Veterinary and Comparative Orthopedics and Traumatology
2
2024
Ultrashort Echo Time Quantitative Magnetic Resonance Imaging of the Cruciate Ligaments in Normal Beagles
2024-2-VCOT-socha-2
In Adams 2024 et al., on canine tibial plateau fractures, what surgical construct was used for the medial TPF in Case 3?
🔍 Key Findings
- Tibial plateau fractures (TPF) are rare in dogs, but can be surgically stabilized with good outcomes even in complex trauma cases.
- Lateral TPFs (Unger type 41-B1) were approached via caudolateral arthrotomy, with elevation of the lateral meniscus for visualization and use of lag screws and K-wires for fixation.
- Medial TPF (Unger type 41-B2) was addressed via medial parapatellar approach using K-wires and a figure-of-eight tension band.
- One minor complication occurred: implant yield at 2 weeks in a case with a concurrent fibular fracture, resulting in a 0.8 mm step defect.
- No major complications were recorded, and all dogs achieved clinical union with full function by 8–10 weeks.
- Long-term owner-reported outcomes (LOAD scores) were excellent (5/52), indicating minimal osteoarthritis or chronic pain.
- Concurrent fibular fractures may increase risk of implant failure and should influence implant selection (e.g., considering buttress plating).
- Arthroscopic-assisted techniques may be applicable in select cases, but open reduction was preferred due to fragment displacement or concurrent injuries.
Veterinary Surgery
6
2024
Prospective evaluation of the surgical stabilization and outcome of canine tibial plateau fractures in three cases
2024-6-VS-adams-1
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